Senna
corymbosa (syn Cassia corymbosa)
Formally known as
Cassia corymbosa (and most likely this was wrong and it should
have been Cassia obtusa). This evergreen shrub has masses of
yellow flowers in the late Summer and Autumn. It requires a hot
position to flower well and outside of the South and West should
be given greenhouse protection. (Min -11c) It make a really good
conservatory shrub for late summer colour. It does well for us
west facing outside but against the greenhouse glass. Introduced
to the UK around 1790.
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